Knife unit



April 27, 1943. s. CLAUSEN 2,317,731

KNIFE UNIT Original Filed April 29, 1936 mvE ToR' 81 7 79 SIGURD CLAUSEN TTORNEY Patented Apr. 27, 1943 Sigurd Clausen, Brooklyn, N. Y., assignor to International Cigar Machinery Company, a corporation of New Jersey Original application April 29, 1936, Serial No. 76,932. Divided and this application November 13, 1940, Serial No. 365,423

3 Claims.

This invention relates to cigar machines. This application constitutes a division of my co-pending application Serial No. 76,932, filed April 29, 1936, which became Patent No. 2,276,289 on March 19, 1942, and the main object of the subject matter of this application is to provide a novel knife unit which is suitable for severing tobacco sections from a stream of filler tobacco. With this and other objects not specifically mentongues 284 (Fig. 3) of the knife, which are guided in slots 285 of frame 256 are held against ledger 218. The knives used heretofore had an appreciable thickness and consequently removed thick slices of filler tobacco in severing the tobacco sections, which slices were wasted. By using a very thin knife having a beveled cutting edge in accordance with my invention, no tobacco is wasted during the cutting operation.

tioned in View, the invention consists in certain y p ess g the tongues of the knife aga nst t e constructions hereinafter fully described and ledger plat in a rda e wi t v nt n. maim d, the knife is continuously maintained in the Referring to the drawing which forms a part proper relation to the ledger plate to sever the of this specification and in which like characters tobacco Se t o o t fi e yof reference indicate the same or like parts; It Will be noted that the clamp bar 213 stiifens 1 is an end e1evation of th knife t; the knife, which may have a thickness such that 2 i a i elevation of th same; and it is capable of distortion and may be warped in Fig. 3 is an enlarged sectional view of the e ha den n pr c ss. d maintains itin a e knife it ment with the ledger plate.

From a column or stream of filler tobacco, at e invention above described m y be varied which may be suitably com acted, a tobacco secin c st t w n the scope of the la m tion is s vered by a knif 255, Th knif 255 for the particular device selected to illustrate the (Figs, 1, 2 and 3) is ground to provide a cutting invention is but one Of many 00110116178 embodiedge thereon and mounted in a frame256 ments of the same. The invention therefore, is pended from studs carried by the projecting 25 not to be restricted to the precise details of the arms 258 of the upper tie-bracket 259. Bracket Structure S own and described. 259 and a lower tie-bracket 260 are clamped on What is claimedis! the vertical slide-rods 2t| which are guided in v 1. In a ciga ma av ng a ledger p a h 252 of k t 205 and in bearings :54 the combination with a verticall reciprocable adjustably attached to the frame of the machine. frame. a a e y thin fiat knife of a thickness o forked l 255 of t b k t 260 i pivotalsuch that it will shear tobacco sections from a 1y mounted one end of a rod 2 5 which is mass of tobacco without punching out tobacco nected with a cam lever 261 fulcrumed on a cross slices from the mass and is capa le of is r io shaft 288. An upright arm 269 of cam lever 26'! Said knife having downwardly extending tongues carries a cam follower 210 which engages a cam at its margins, aclamp r a t ning said knife to track in cam 27; The knife 255 (Fig. 1 may be said frame and extending across the width formed of two separate sections which are fasthereof, and means r d o guide the martened to frame 256 by screws passing through a gins of a d knife during the es ent of said clamp bar 273 and threaded into the frame 256, Support Said means including Spring p essed the bar being recessed to receive the stems 214 members Continuously Pressing a d tongues of two adjusting screws 215 which assure correct against the ledger plate ng the ascent and vertical positioning of the knife. On a bracket descent 0f Said ppo 216 is adjustably supported ablock 27! carrying a In a Cigar machine v g a ledger plate, ledger plate 213 bracket 21 being equipped with the combination with a Vertically reciprocable adjusting screws 219 which permit vertical ad- Support, of a flat knife fastened to said support, justment of ledger plate 278 for aligning the same Said knife having downwardly e e g ton with guide 202 and guide 280. The member 280 at its margins and having a cutting portion is fastened to the top of the bracket 216 and which is of a thickness such that it will shear forms a continuation of the guide 202. on e ch tobacco sections from a mass of tobacco without end of bracket 205 is pivoted an arm 28] which punching out tobacco slices from the mass and is is equipped with a roller 282 engaging the knife capable of distortion and provided with a beveled frame 256. Rollers 282 are held in constant encutting edge, and means arranged to guide sai gagement with frame 256 by means of springs tongues and continuously press them again t the 283 which are seated in recesses provided in ledger plate during the ascent and descent of the bracket 205 and arm 28L and in this manner the support.

3. In a cigar machine, the combination with a ledger plate, of a support reciprocable vertically toward and away from said ledger plate, a flat knife mounted on said support and coacting with said ledger plate to shear a tobacco section from a mass of tobacco, said knife being sufficiently thin to shear the tobacco section without punching out tobacco slices from said mass in the v shearing operation, and said knife being providedwith tongues extending downwardly from its 1 margins to engage said ledger plate continuously while said support approaches and recedes from the ledger plate, and yielding means continuously engaging said tongues and acting to maintain said tongues in constant engagement with the ledger plate asthe knifedescends to sever the tobacco section and while it ascends to initial position.

SIGURD CLAUSEN. 

